Absence of a polar phase in perovskite chromite RCrO3 (R=La and Pr)

Kenji Yoshii, Naoshi Ikeda, Yutaka Shimojo, Yoshinobu Ishii

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Magnetic and dielectric properties have been studied for LaCrO3, PrCrO3, and their solid solution La0.5Pr0.5CrO3, which belong to a family of the ferroelectric orthochromite series RCrO3 (R: rare earths). The magnetic measurements confirm that the materials show canted antiferromagnetic ordering at 240–288 K. Neutron diffraction patterns could be fitted with the centrosymmetric Pnma, which is different from the non-centrosymmetric structure proposed for the ferroelectric phase of NdCrO3. The large dielectric constants are likely due to the hopping of charge carriers as proposed previously for other chromites.

Original languageEnglish
Pages (from-to)96-101
Number of pages6
JournalMaterials Chemistry and Physics
Volume190
DOIs
Publication statusPublished - Apr 1 2017

Fingerprint

Chromite
chromites
Perovskite
Ferroelectric materials
magnetic measurement
neutron diffraction
dielectric properties
charge carriers
solid solutions
diffraction patterns
rare earth elements
permittivity
magnetic properties
Magnetic variables measurement
Neutron diffraction
Charge carriers
Dielectric properties
Diffraction patterns
Rare earths
Solid solutions

Keywords

  • Chromite
  • Ferroelectricity
  • Magnetism
  • Perovskite

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Absence of a polar phase in perovskite chromite RCrO3 (R=La and Pr). / Yoshii, Kenji; Ikeda, Naoshi; Shimojo, Yutaka; Ishii, Yoshinobu.

In: Materials Chemistry and Physics, Vol. 190, 01.04.2017, p. 96-101.

Research output: Contribution to journalArticle

Yoshii, Kenji ; Ikeda, Naoshi ; Shimojo, Yutaka ; Ishii, Yoshinobu. / Absence of a polar phase in perovskite chromite RCrO3 (R=La and Pr). In: Materials Chemistry and Physics. 2017 ; Vol. 190. pp. 96-101.
@article{682d7e9547554be68e705e539a49d4a6,
title = "Absence of a polar phase in perovskite chromite RCrO3 (R=La and Pr)",
abstract = "Magnetic and dielectric properties have been studied for LaCrO3, PrCrO3, and their solid solution La0.5Pr0.5CrO3, which belong to a family of the ferroelectric orthochromite series RCrO3 (R: rare earths). The magnetic measurements confirm that the materials show canted antiferromagnetic ordering at 240–288 K. Neutron diffraction patterns could be fitted with the centrosymmetric Pnma, which is different from the non-centrosymmetric structure proposed for the ferroelectric phase of NdCrO3. The large dielectric constants are likely due to the hopping of charge carriers as proposed previously for other chromites.",
keywords = "Chromite, Ferroelectricity, Magnetism, Perovskite",
author = "Kenji Yoshii and Naoshi Ikeda and Yutaka Shimojo and Yoshinobu Ishii",
year = "2017",
month = "4",
day = "1",
doi = "10.1016/j.matchemphys.2016.12.074",
language = "English",
volume = "190",
pages = "96--101",
journal = "Materials Chemistry and Physics",
issn = "0254-0584",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Absence of a polar phase in perovskite chromite RCrO3 (R=La and Pr)

AU - Yoshii, Kenji

AU - Ikeda, Naoshi

AU - Shimojo, Yutaka

AU - Ishii, Yoshinobu

PY - 2017/4/1

Y1 - 2017/4/1

N2 - Magnetic and dielectric properties have been studied for LaCrO3, PrCrO3, and their solid solution La0.5Pr0.5CrO3, which belong to a family of the ferroelectric orthochromite series RCrO3 (R: rare earths). The magnetic measurements confirm that the materials show canted antiferromagnetic ordering at 240–288 K. Neutron diffraction patterns could be fitted with the centrosymmetric Pnma, which is different from the non-centrosymmetric structure proposed for the ferroelectric phase of NdCrO3. The large dielectric constants are likely due to the hopping of charge carriers as proposed previously for other chromites.

AB - Magnetic and dielectric properties have been studied for LaCrO3, PrCrO3, and their solid solution La0.5Pr0.5CrO3, which belong to a family of the ferroelectric orthochromite series RCrO3 (R: rare earths). The magnetic measurements confirm that the materials show canted antiferromagnetic ordering at 240–288 K. Neutron diffraction patterns could be fitted with the centrosymmetric Pnma, which is different from the non-centrosymmetric structure proposed for the ferroelectric phase of NdCrO3. The large dielectric constants are likely due to the hopping of charge carriers as proposed previously for other chromites.

KW - Chromite

KW - Ferroelectricity

KW - Magnetism

KW - Perovskite

UR - http://www.scopus.com/inward/record.url?scp=85011664434&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85011664434&partnerID=8YFLogxK

U2 - 10.1016/j.matchemphys.2016.12.074

DO - 10.1016/j.matchemphys.2016.12.074

M3 - Article

VL - 190

SP - 96

EP - 101

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

SN - 0254-0584

ER -